<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
<!--      <el-form-item label="所属板块id" prop="sectionId">-->
<!--        <el-input-->
<!--          v-model="queryParams.sectionId"-->
<!--          placeholder="请输入所属板块id"-->
<!--          clearable-->
<!--          @keyup.enter.native="handleQuery"-->
<!--        />-->
<!--      </el-form-item>-->
<!--      <el-form-item label="发帖用户" prop="userId">-->
<!--        <el-input-->
<!--          v-model="queryParams.userId"-->
<!--          placeholder="请输入发帖用户"-->
<!--          clearable-->
<!--          @keyup.enter.native="handleQuery"-->
<!--        />-->
<!--      </el-form-item>-->
      <el-form-item label="帖子标题" prop="postTitle">
        <el-input
          v-model="queryParams.postTitle"
          placeholder="请输入帖子标题"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['posts:posts:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['posts:posts:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['posts:posts:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['posts:posts:export']"
        >导出</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="postsList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="序号" align="center" width="80">
        <template slot-scope="scope">
          <span>{{ (queryParams.pageNum - 1) * queryParams.pageSize + scope.$index + 1 }}</span>
        </template>
      </el-table-column>
      <el-table-column label="所属板块" align="center" prop="sectionName" />
      <el-table-column label="发帖用户" align="center" prop="nickName" />
      <el-table-column label="帖子标题" align="center" prop="postTitle" />
      <el-table-column label="点赞人数" align="center" prop="likeNum" />
      <el-table-column label="创建时间" align="center" prop="createdAt" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createdAt, '{y}-{m}-{d} {h}:{i}:{s}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="更新时间" align="center" prop="updatedAt" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.updatedAt, '{y}-{m}-{d} {h}:{i}:{s}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-chat-dot-round"
            @click="showCommentDialog(scope.row)"
          >查看评论</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['posts:posts:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['posts:posts:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改社区帖子对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="所属板块" prop="sectionId">
          <el-select
            v-model="form.sectionId"
            placeholder="请选择板块"
            filterable
            style="width: 100%"
          >
            <el-option
              v-for="item in sections"
              :key="item.sectionId"
              :label="item.sectionName"
              :value="item.sectionId"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="帖子标题" prop="postTitle">
          <el-input v-model="form.postTitle" placeholder="请输入帖子标题" />
        </el-form-item>
        <el-form-item label="帖子内容">
          <editor v-model="form.postContent" :min-height="192"/>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
    <!-- 评论查看弹窗 -->
    <el-dialog
      title="评论详情"
      :visible.sync="commentDialogVisible"
      width="800px"
      append-to-body>
      <div v-loading="commentLoading">
        <!-- 使用之前实现的评论组件 -->
        <comment-list :comments="commentTree" :post-id="pkId" :commentType="3" @refresh-comments="loadComments" />
      </div>

      <span slot="footer" class="dialog-footer">
    <el-button @click="commentDialogVisible = false">关 闭</el-button>
  </span>
    </el-dialog>
  </div>
</template>

<script>
import { listPosts, getPosts, delPosts, addPosts, updatePosts } from "@/api/know/posts";
import { listSections } from "@/api/know/sections";
import { commentTree } from "@/api/know/comments";
import CommentList from '@/components/Comment/CommentList'
import CommentItem from '@/components/Comment/CommentItem'

export default {
  name: "Posts",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      sections: [],
      // 总条数
      total: 0,
      // 社区帖子表格数据
      postsList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        sectionId: null,
        userId: null,
        postTitle: null,
      },
      // 表单参数
      form: {},
      commentDialogVisible: false,  // 评论弹窗显示状态
      currentPost: null,            // 当前查看的帖子
      commentTree: [],              // 评论树数据
      commentLoading: false,         // 评论加载状态
      pkId:"",
      // 表单校验
      rules: {
        sectionId: [
          { required: true, message: "所属板块id不能为空", trigger: "blur" }
        ],
        userId: [
          { required: true, message: "发帖用户不能为空", trigger: "blur" }
        ],
        postTitle: [
          { required: true, message: "帖子标题不能为空", trigger: "blur" }
        ],
        postContent: [
          { required: true, message: "帖子内容不能为空", trigger: "blur" }
        ],
      }
    };
  },
  components: {
    CommentList,
    CommentItem
  },
  created() {
    this.getList();
    this.getSectionsList();
  },
  methods: {
    // 显示评论弹窗
    async showCommentDialog(row) {
      this.currentPost = row;
      this.commentDialogVisible = true
      this.pkId = row.postId
      try {
        this.commentLoading = true
        commentTree({infoId:row.postId,commentType:3}).then(response => {
          this.commentTree  = response.data
          this.loading = false;
        });
      } catch (e) {
        console.error('获取评论失败:', e)
        this.$message.error('评论加载失败')
      } finally {
        this.commentLoading = false
      }
    },
    loadComments(){
      commentTree({infoId:this.pkId,commentType:3}).then(response => {
        this.commentTree  = response.data
        this.loading = false;
      });
    },
    /** 查询社区板块列表 */
    getSectionsList() {
      this.loading = true;
      listSections({pageNum:1,pageSize:9999}).then(response => {
        this.sections  = response.rows;
        this.loading = false;
      });
    },
    /** 查询社区帖子列表 */
    getList() {
      this.loading = true;
      listPosts(this.queryParams).then(response => {
        this.postsList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        postId: null,
        sectionId: null,
        userId: null,
        postTitle: null,
        postContent: null,
        isValid: null,
        createdBy: null,
        createdAt: null,
        updateBy: null,
        updatedAt: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.postId)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加社区帖子";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const postId = row.postId || this.ids
      getPosts(postId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改社区帖子";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.postId != null) {
            updatePosts(this.form).then(response => {
              this.$modal.msgSuccess("修改成功")
              this.open = false;
              this.getList();
            });
          } else {
            addPosts(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const postIds = row.postId || this.ids;
      this.$modal.confirm('是否确认删除社区帖子编号为"' + postIds + '"的数据项？').then(function() {
        return delPosts(postIds);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('posts/posts/export', {
        ...this.queryParams
      }, `posts_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
<style>
/* 调整评论弹窗高度 */
.el-dialog__wrapper /deep/ .el-dialog {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
}

.el-dialog__wrapper /deep/ .el-dialog__body {
  flex: 1;
  overflow: auto;
}
</style>
